Countersinking machine



April 12, 1927.y Y 1,624,648

W. G. ALDEEN COUNTERSINKING MCHINE original 911811' Aug. 21. 1922 9 sheets-sheet 1 April 12, 1927. Y 1,624,648

W. G. ALDEEN COUNTERSINKING MACHINEl original Filed Aug. i. 1922 9 sheetssheet 2 l *Y A if 56 Mig/ 242%@ l QM April 12 1927' w.- G. ALDEEN COUNTERS INKING MACHINE Original Filed Augfzl, 1922 9 sheets-sheet s gf Zz wwwmfw April 12, 1927. 1,624,648

W- vG. ALDEEN COUNTERSINKING MACHINE oiginal FiledAug. 21. 1922 9 sheets-sheet 4 6 F IGS 1,624,648 April lvZ, 1927. W; G. ALDEEN I y COUNTERSINKING MACHINE Original Filed Aug. 21. 922 I -9 Sheets-Sheet '7 FIG-I4 v 4 as IMMBHEML A FIG IO w..`G.A|.DEEN

COUNTERSINKING MACHINE `original Fnedug. v21, 1922 9 sheets-snee; e

FIG-IE 1,624,648 w. G. ALDEEN f ,Y

COUNTERSINKlNG MACHINE Aprilv 12, 1927...:

original Filed Aug, '21. 1922 Qsheets-sheet-'f M Qu.

W2@ l /Q 5% Patented Ap'r. `12, 1927. i

UNITEDl STATES. PATENT OFFICE.

WILHELM G. ALDEEN, OF ROCKFORD, ILLINOIS, ASSIGNOR TO' NATIONAL LOCK CO., OF ROKFORD, ILLINOIS, A CORPORATION 0F DELAWARE.

COUNTERSIN KING MACHINE.

Application led August 21, 1922, Serial No. 583,177. Renewed October 22, 1926.

This invention relates to countersinking and counterboring machines generally and more particularly to a 'machine for countersinking hinges and the like.

The principal object of the present 1nvention is to provide a countersinking 4 machine -employing constantly driven stationary countersinking drills and a relatlvely movable Work support having associated .therewith work feeding means and retarding means whereby `the work is advanced f intermittently4 across the support to be oper- .ated upon successively by .the drills.

Another object of the invention consists i in the novel arrangement employed wherein the tools are constantly driven in the normal operation of the machine and the work support elevating means, the hinge feeding means and the hinge retarding means are adapted in the normal operation of the machine to be operated continuously therewith except when the machine is being set for operation in which event the power vdrlve for the work support elevating means, the hinge feeding means and the hinge retarding means is adapted to be disconnected so that these portions of the machine may be.

operated manually, and the machine kput through a numberof trial operations when adjustments are made.

Still another object of the invention is to provide in connection with the stationary constantly' driven drills a relatively movable Work support, means for moving the support, and means for feeding. hinges across the support relative to the drillsto be operated upon, both of which means are adapted for disconnection from the driving means to be .interchanged in order to effect either a change in the depth of countersink or counterbore to be produced 'or to adjust the machine lfor operation on hinges of a different size or thickness, the machine being ada ted for manual operationin the manner a oresaid in -order to -putA the same through a few trial operations.

urther object of the invention resides in the provision in connection with the constantly driven drills of* a relativelymovable workl jjsupport,v a hinge feeding means and a hinge retarding means,vall of which means .aref driven through suitable transmission' from the same source from lwhich `the drills are operated,- such trans- `mission including adjustable speed transf Iinvention will mission gearing whereby the relative speedof operation of the feeding means,"'retarding means and the workl support elevating means may be varied. l 1

A still further object ofthe invention is to provide in connection with thecountersinking drills a plurality of blowers oper. ating upon the points of the drills to clear the work of drillings and in a measure to keep the drills cool. Y v

Other and more' general objects ofjthe invention are to provide a machine'of this charac/ter capable. of extensive adjustment for Voperation on ldifferent sizes andv kinds yof work and to provide a machine which is not apt to have partsthereof operation due to maladjustment.' y

The foregoing and other` objects ofthe e pointed out more fully in the' following detailed description inv which reference is made to the accompanying drawings illustrating the invention.`

Figure 1 of the drawings is a sideeleva- ,tion of a complete machine embodying the features of the present invention. f Fig.I 2 is afront view on a -slightly larger scale, a portion of the base'. of the machine being broken awa Fig: 3 is a fragmentary dejammed in tail, partly'in section 'andKA partlyin side elevation, of the work .support and the air nozzles .shown in operativecrelation'fthereto, a port'on also of a drill being shown'to illustrate the-relative positioning of the nozzles with respect to the drills and also with respect to the hinges fin the' work support. Fig. 4 isa plan view of the-work support showing the hinge magazine in section. In this view there appears alsd' aportionof the hinge feeding means, thehinge retarding` means and the air nozzles, the latter being shown in the positions to ,which they are'ad justed forv clearing ,the work of drillings in the operation of the machine. Fig.v 5 is a detail partly inlsection and partly in elevation of the driving connections for the drills, for the hinge feeding means, the `hinge retardingmeansi and the work support ele- This view is taken on thelll io's

on the line 7-7 of Fig. 2. Fig. 8 is a frag- V mentary sectionaldetail of the driving coni nections lfor the'separa'te drills andis 'taken I on the line of Fig. Fig. 9"is a fragmentary detail taken approximately onv the line 9-9 of Fig. 1 showing the variable speed transmission gearing for operating the secondary driven shaft from the main driven shaft of the machine. Fig. 10 is a: horizontal sectional detail of the transmission mechanism and is taken on the line 10-10 of Fig. 5. Fig. 11 is another horizontal sectional detail of the tool support and is taken on the line 11-11 of Fig. 1. Figs. 12 and 13 are respective a side elevation anda plan view of a modified'form of the invention, this form being in the nature of an attachment for the machine for operating upon fancy hinges, the butt hinge magazine, feeding means' and retarding means being removed from the machine and replaced by others capable of operating on the fancy hinges. Fig. 14 is a horizontal section of the modified form of the invention, taken on th line 14A-14 of Fig. 12.- j

Throughout the views the same or similar reference numerals apply to corresponding parts.

The invention is herein shown as embodied in a machine for countersinking hinges. As will hereinafter more definitely appear, the invention is not limited to use in this connection, but certain features'thereof are adapted to use in drill presses and other machines `of the same general character.

Referring to the drawings the machine comprises a standard 15 havin'g the base thereof rigidly 'mounted upon the basepla'te 16. The latter is of extended width and *serves as a support for the electric motor 17 All of these portions of the' mechanism of the machine will be hereinafter more fully described. The standard'15 is provided with a dovetailed projection 26 upon which is mounted for vertical adjustment a normally stationary tool support 27. The 'adjustment is secured by means of'a jack screw 28 operating against lan abutment 29 on the standard 15 to raise the support. 'The support is counterbalanced by a weight 30 connected by means of a chain 31 to the support, the chain passing over suitable idler sprockets 32. When properly positioned the support v`is arranged to be clamped by the set screw 33 operated by 'the hand lever 34. The tool support 27 has a lateral T-slot 27 a provided therein to provide means for attachment and adjustment of .one or! more brackets 27.

`These brackets .are universally adjustable sidewise and forwardly and rearwardly with the bearing portions 35" to produce adjustment of the chucks 36 for the drills 21;

The chucks 36 are mounted upon the ends of spindles 37v turning in the bearings 35 and driven through universal joints 38 and extensible shafts '39 from the driven studs 40, having bearings in and-projecting from the overlying casing 41 forming a part of' the standard 15 and cast preferably integral therewith. A slight degree of longitudinal.

necessarily tine adjustment for the depth of counter-sinks to be made in the work. The

studs 40 las aforesaid are receivedin bearings inthe casing 41. There are also bearings-therefor provided in the removable cap plate 43 secured preferably bypcap screws 43a to the casing 41. The studs 40, of which there are in this instance five, mounted in the casing 41, are driven by pinions 44 from the gear 45 meshing with the gear 46 keyed to the @vertical driven spindle 47. There are intermediate' pinions 48 on studs 49 between each of the drill stu'ds 40 'serving to drive the drill studs all in the same direction. The spindle '47`extends centrally inside the standard 15 as shown in Fig. 5 and is received in a suitable thrust or end bearing 50 supported from the plate 51 setl in ,the opening 52 in one wall of the standard 15. A. bearing 53.is.mounted in this plate to receive the end ofthe main-driven` .shaft 20. Adriving connection between the shaft 20 and the; spindle 47v is afforded by the b evelled gear 454 keyed to the inner end of the shaft 20 and a bevelled ear 5.5 keyed tothe lower end of the 'spindle 47 at TAVthe bearing 50. It ywill thus ap ear that in the operation of the'machine t e drills 21 are constantly driven.

g The Worksupport 23 is mountedfor movement toward and awa-y from the vdrills 21 in theways 56 formed preferablyintegral on the side of the standard 15 at the lower front thereof. The support 23 has a 'dovetailed depending plate 57 operating 'in'.the Ways 56 and having a slot 58 to permit movement of the plate in the Ways relative to the cam shaft 22 which extends through the slot 58. The shaft'22 has a cam 59 thereon',

the throw of lwhich is relatively slight as` of the calm 59. ,The cam 59 maybe formed as part of a compound c'am ofv which the ycam 62 on the shaft22 is also a part. The cam 62 has a relatively greatthrow to swing the lever on itsl pivot 64 against they tension of a spring 65. through the medium of a roller 66 mounted on a stud r-provided'on the lever .The lever 63 has connection .v ,suitably through links 67 with a bracket 68v r'clamped upon and arranged for yadjustment relative to'a pair of parallel rods 69 mounted to'reciprocate in bearings 70 upon the nether side of the work support 23( Mounted upon the outer ends of the parallel rods 69 and arranged suitably for adjustment thereon is V a standard 71 for the feeder 24. The latter is in the form of a rainv arranged to reciprocate relative to a magazine 72 'mounted for universal adjustmentat one end of the -work support 23,4 the purposebeing to feed the pieces of ,work one at a time out be` tween Vche guides 73 to be operated upon by the drills 2l when the work support is` 'properly elevated. The cams 62 and 59 are usually special.

for each particular job since the depth of the countersink toibe produced usually va-I ,ries for each job and also the width'of the hinges to be fed through thel machine to be operated upon.- It is, therefore, manifest thatit will frequently be necessary to replace these'cams by other cams having' the proper characteristics for the particular job in hand. -These cams may both yery readily be removed from the 'shaft 22 by removing the nut 74. Pursuant to the replacement of the cams, certain adjustments of the drills and also certain adjustments of the bracket 68 relativel tq the rods 69 would, of course, be necessary in order jmp' erly to position the work support re ative determine whether the adjustments have been made correctly. This arrangementwill be described presently.

Referring for a moment to Fig. 4 it will be' seen that the magazine'i72, which as.

aforesaid is adjustable in transverse directions at one end of the support 23, has a.

forwardly projecting wall 75 in relation to which an an le plate 76 isadjustable on the backI wall o? the magazine 72. This is to afford la chute 77 down which the hinge blanks are fed to-the support to be countersunk. A number of these blanksdesignated .by the v'numeral -78 are shown in, Fi 4..v

The feeder 24 operates beneath the wal 75 and the adjustable plate 76 of the magazine 72 and is adapted yto project the blanks one of blanks in them'ag'azineout between the guides 73. 'The blanks illustrated are for butt hinges which are especially well adapted to be fed in this manner since they are rectangular and Awhen positioned side by sidebetween itheguides', as shown in Fig. 4,

are adapted for intermittent advancement.

across the support by the successive' introat yatime from the lower end of the stackduction of the blanks., The strokey ofv the feeder 24 is adjusted sov that the blankbeingfed is projected in just far enough toy move the row of blanks until the new blank assumes the erstwhile position of the first blank of the row which, as shown in Fig; 4, yhas had one of the screw holes thereof coun- .tersunk. The operations are repeated, the

blanks being fed successively from one drill to the next', until all three o`f the screw holes thereof 'have been.` countersunk. The machine With the mechanism for drivine [the drills thereof shown in Fig. 7 is capable of countersinking as many as five screw holes in a blank, and these screw holes may, of course, be located in practically any d'esired. relation since the drills a're capable of ,substantially universal adjustment relative 'to the work support by virtue of the mduiit- -ing which they have in the tool supportand further yby virtue of the staggered relation ofthe drlven studs 4 0. It is, of course, ap`

parent. that la greater number of studs for .driving drills' may be provided if desired.

Thejhinge blanks as4 aforesaid are yfedl lin the reciprocation" 'of' the feeder 24,. l,Suchreciprocation vis controlled by the 'ain 62.

The latter'is arranged to positivelyretract i the feeder when the work supportrgislbeing elevated bythe cam 59 inthe cutting/opera'- tionfWhcn the work' supportpis j o the. cam, 62 permits the inward .projection of the feeder under the action of the spring 65.- In this way there is no likelihood of jamming in the event' of a hin e blank becoming stuek between the Gui es 73er at the chute 727 either because ithas been' improperly formed or where by accident a blank of improper -thickness has gotten iin the lstack."`which could not, of course, be guides 7 3.v such event the'machine would go th-rougha numbery of operations idly so that the operator wouldhave an opportunthe lower end 'of ity to remedy the troublevwithout any dainage being done.

The feeder 24- having only a small inter- Val in whichto introduce'` a new blankbetween the guides 73 operates .necessarilyv rather quickly particularly'when the mac hine is being run at some -of the higher speeds at which 1t is capable of being run wered,

Ilrojected out in between4 the lign as, for example, l,when 4high speed trans-` missionrgearing is interposed for operating the cam shaft 22 as will hereinafter be dcscribed. As a consequence of this mode of operation of the feeder, I have found it advisable to provide the retarder 25 which is preferably in the form of a roller mounted upon the end of an arm 79 arranged to swing in the oscillation of a shaft 80 received in bearings 81 projecting rearwardly from the work support 23. This shaft oscillates in proper timed relation to the reciprocation of the feeder 24 to bring the retard roller 25 into frictional engagement with the endmost blankin thel row of blanks being advanced between lthe guides 73. The ,y operation of the retarder is so regulated thatthe blanksfwill not under any circumstance move in beyond Where they are moved by the feeder 24. In other words, the row of blanks is advanced the width of one blank at each operation of the feederv 24. The shaft 80 is oscillated through suitable linkage, shown at 82, in the oscillation of a stub shaft 83 mounted in -a bearing in the said wall of the standard 15. 'A' rocker arm S4 rigid with the shaft 83 carries a roller 85 at its free end which is urged into engagement with the face of a cam 86 keyed to the shaft 22, underl the action of a spring 87 having connection between the opposite end of the rocker arm 84 and an eye-bolt 88 adjustable inthe rear wall of the standard 15.

Associated with 'each of thedrills 21 isv an air nozzle 89. The latter extend to a point alongside the ends of the drills 21 and in 'the general direction of the screw holes to be countersunk. They serve principally to clear the work of the drillings but meidentally are instrumental in keeping the drills relatively cool since the blasts of air therefrom operate` on them continuously. These nozzles communicate with the pipe 90 through swivel connections 91 the details of which it will not be necessary to consider in this specification. It will suffice to state that these connections aord communication for vthe'nozzles with the bore of the pipe 90 in all relative positions to which the nozzles are moved in practice.' The set lscrews 91 afford means for clamping the parts in adjusted relation. The pipe 90 will, of course, have connection through a suitable line with a source of air pressure supply which is usually available, around shops where machines of this kind are operated.

The main driven shaft 20 is arranged for detachabledriving connection with the cam shaft 22 in order to permit of the manual operation of theA latter in setting the machine for operation. The main driven shaft 20 which, as above described, serves to drive the drills'21 through the spindle 47 drivesa counter-shaft 92 by means of the vgear93 ,formed preferably integral with the bevelled ,gear 5 4 and meshing with the spur gear 94 keyed or otherwise made rigid with the countershaft 92. mounted in a bearing A95 1n the front wall of the standard l15 and is received in a bearing in the removable plate 51 which, as before, stated, is mounted in the opening 52 in the rear wall of the standard 15. A pinion 96 on the end ofthe countershaft 92 meshes with a pinion 97 keyed upon a sleeve 98 arranged to turn freely on the jack shaft 99. The latter extends forwardly through a bearing 100 in the front wall of the standard 15 and is squared at its outer end, as shown at 101, to receivefa hand crank 102 or other means for turning the shaft manually in setting the machine for operation. Thecrank 102 is shown in Idotted lines in Fig. 1 and, it will lie-understood, is removed afterthe machine is properly set since the shaft 99 in the normal operation of the machine is driven from the shaft '20 .through lthe transinission gearing just described. The driving connection with the shaft 99 is afforded by av clutch collar 103 pinnedfupon the shaft and having clutch teeth 104 arranged to mesh withl the teeth 105 of the shiftable collar 106. The latter, as shown in Fig. 10, is splined upon the sleeve`98 and arranged vto be shifted freely into engagement with the collar 103. This movement of tlie collar 106 lis communicated by a yoke 107 pivoted upon thestud 108 projecting inwardly from one of the side walls of the standard` 15 as shown in Fig. 6. The yoke 107 is operated conveniently by a forked arm 109 arranged to .swing in the oscillation of the shaft 110.

. spur gear 112 "withY the pinion 113 rigid-with the shafty 99 and formed preferably asan integral part of the driven clutch collar 103.`

It is therefore apparent that the' operator The countershaft 92 ishas it at his option 'to drive the cam shaft f 22 either manually by turning by crank the shaft 99 or upon proper manipulation of either of the levers 111, which are Within convenient reach at either side ofthe ma'- chine, may drive the cam shaft by power.

v'Vhen the clutch l106 has been disengaged.

the cam shaft 22is thereby disconnected from driving relation and the operator is enabled either to makeadjustments of the blank feeding and retarding means or the means for elevating the work support, or he may replace the cams 59 and 62 by otherv cams having the desired characteristics for operation upon the special Work in hand.

ln operating upon certain kinds of work as, for example. where only a single hole ,in

each piece is to be countersunky or where f or4 other reasons the work is to be'advanced through the machinein quicker succession, it is necessary or at least desirable to operato the machine at a faster rate. .I therefore employ adjustable speed transmission for the operation of the cam shaft 22 lfrom which shaft the blank feeding and'retarding means is operated and, as Well, the work support elevating means. In this way it is possible te secure variations in the relative speeds of the shaft 20 and thel shaft 22 by interchanging the gears 96 and 97 (see Fig. 9) with other gearsv of the desired relative sizes.

Thisreplacing of gears can, of course, be

done only when the machine is not in operation. Ordinarily the speed at which the drills are operated may remain constant. However, where because 'of the increase in the speed of voperation of the blank feeding and retarding means or because of a changel in the depth of the counterbore tobe produced or where the machine is to operate upon ,certain materials requiring high speed drills, it would be practicable'to change the .gearing for the spindle 47 in an vobvious manner.

The operation of the machine is praetically apparent from the foregoing descrlption. Work stacked in the magazine 72 is fed between the guides 73 on thev work support 23 when the latter is in its lowermost position away from the points of the drills 21. The reciprocating feeder 24 which 111-' troduces the blanks one by one advances the row of blanks already inthe guides successively from drill to drill so that first one hole 1s countersunk, then a second and finally a third, as illustrated in Fig. 4. At about the end of the stroke of the feeder 24 the retarder 25 engages gently the endmost blank in the roW of blanks between the guides so thatI there can be no continued movement of the blanks out of proper registered relation with respect to the drills at the end of each feeding stroke. AThe cam 62 which operates the'feeder 24 is properly dispoed angularly with respect to the cam 59- so that when the feeder is in retracted position the work sup- .lningavoided The feeding'of the blanks' is impositive so that in the event of a blank becoming lodged either at the bottom of'the magazine or at any point between thel guides the machine itself will not in any way bel damaged. In fact, injury to the work may be avoided in such a contingency by the rop.-` erator throwing either of the levers 111 which for this reason are provided on both Sides of the machine within easy reach. The manner oflvarying the speed of operation and the manner of adjusting the machine preparatory to operation has been fully described.

The machine of the present invention is capable of operating upon hinges or the like of irregular shapes. In operating on such hinges I preferto employ a separable attachment such as that shown in Figs. 12 to 14. This attachment comprises 'an auxiliary work support in the form of a dial 23 mounted to rotate with a central vertical spindle 120 operating in the bearing 121 fastened suitably by cap screws 122 upon the front of the work support 23. The latter is arranged for movement with the dial 23 toward and away from the drills 2l, in the operation of the cam 59 against the roller 'on the plate 57 movable in the guideways 56. 'lhe actuating lever 63 operated by the crank 2, is connected kby the links 67 to a rack bar123 which, like the rods 69, is reciprocable in bearings on the under side ofthe Work support23. the teeth of the rack bar is a gear sector 124 adapted to oscillate upon the neath the bearing 121. An arm 125 is rigid wlth the gear sector 124 and extends diametrically therewith on the opposite side of the spindle -120 to swing' in a horizontal plane above a ratchet plate 126 keyed or otherwise made rigid with the spindle 120 to rotate the same intermittently.y The ratchet plate is notched in its periphery to receive the pawl 127 pivotally mounted on a stud 128 von the end of the arm 125 and normally urged into engagement with the plate 126 by the torsion spring 129. In the oscillating movement of the gear sector 124 which is communicated in of the rack bar 123 the pawl 127 advances the plate 126 and hence the dial 23 intermittently step by step. VA suitable detent p' such as that shown ati130 is spring pressed into'engagement with the periphery of the lMeshing with the reciprocation n spindle 120 beplate 126 and is arrangedupon each operation of the pawl 127 to ride out 'of one notch and into the-next notch of the plateto stop the saine at'each intermittent.rotation thereof. This detent is suitably supported by the bracket 131 from the work support 23. In theintermittent advancement ofthe dial 23 the blanks 78 are advanced successively from one drill to the next so that first one hole is countersunk, then a second, and finally a third, inthe manner illustrated in Fig. 13. The blanks may conveniently be positioned between pegs 132 with' their ends` received in notches in the plate 133, as sho-wn. The operator standing at one side of the dial Will remove the blanks with one hand and place new blanksbetween the pegs with imv the other hand. The blanks in being advanced beneath vthe drills. are prefe rably \retarded by means of the overhanging arms 25?':fafdjustable angularly with respect to the shaft-80 arranged to oscillate in the bearings ab.. *s i This reciprocating motion communicates ro- Itary movement .to the spindle 120 through the sector mittently turnthe dial 23. toadvance thc ywork beneath the l drills.Al After each advancemeiit of the workthe dial '23 with thesupport 23 is raised to the drills similarly as in` the preferred form. With this form of the invention itis, of course, manifestgthat the cam for operating the lever (33 and the cam for .operating the work support 23 may be interchanged with otherl cams having the desired characteristics.' Furthermore, the cam shaft on which these cams are mounted may convenientlyl be driven at different speeds through 'the variable .speed transmission above described so that the work may be advanced in quicker succession beneath the drills similarly as in the preferred form.

`ltlwill be apparent Ifrom the foregoing 4description that the invention is capable in certain respects of modifications and adaptations without de arting from the spirit of the invention. it is the endeavor in the accompanying claims to include all legitimate modifications and adaptations of the invention which wouldoccur to one skilled in the art to which the invention relates.

I 'claim as my invention:

i A 1,'In a machine of the character described, the Vcombination with 'relatively movable work and tool supports, tools operating in ysaid tool-support, a feeder for feeding work across said work vsupport inrelation to said tools, a retarder adapted to operate upon each operation of said feeder to stop the work in relation to said tools, and means for producing relative 'movement between said supports inthe cutting operation, of means for operating said feeder and' retarder and said firstlmentioned means', a main shaft for driving said tools continuously at substantially constant speed in the operation of said machine, a secondary shaftl driven from said main shaft to operate'both said means, and in adjustable speed transmission between said main and secondary shafts, said transmission including a clutch adapted to bere'leased to permit the manual operation of said secondary shaft to operate said feeder and retarder and said means for producing "relative movement be- 124 and the pawl 127 to inter-,

tween said supports duringthe continued operation of said tools from said main shaft.

2. in a machine vof the character described, the combination with relatively movable work and tool supports, tools operating in said tool support, a feeder for feeding work across said work suppbrt in rela-f tion to said tools, a retarder adapted to v operate to 'stop the work in relation to said tools, and means for producing relative movement between said supports in the cuttingoperation, of means for operating said feeder and retarder and said means forproducingrelative movement between said supports, a main shaft fordriving said 4tools continuously at substantiallyconstant speed in the operation of said machine, a secondary shaft driven from said main shaft to operate-said last mentioned means for operatingifsai feeder,'retarder and said means for producing relative movement between said supports, and adjustable speed transmissionbetween said main and secondary shafts. l

3. In a machine of 'the character deupon eachoperation of said kfeeder scribed, the combination with rrelatively' movable work and tool supports, tools operating in said tool support, a feeder for feeding work across said work support, a retarder to stop the work in register with said tools after each operation of saidpfeeder, and means to produce a certain amount o relative movement betweensaid supports in` the .cutting operation, of a main shaft for operating said .tools continuously in the g operation of said machine, a 'secondary shaft for the operation of said feeder and retarder and said means for producing relative movement betweensaid supports, and adjustable speed transmission between said main and secondary shafts whereby to operate said feeder and retarderand said means for producing relative movement between said supports at variable speeds in the continued constant driving of said tools in the operation of said machine. p l 4. In amaclunc of the character described,

the combination of a Stationary tooll supi' port arranged for vertical adjustment, tools mounted therein'arranged for horizontal'adjustment, a work` support movable toward and away from said tool support, an elevator for said 'work support, a magazine for worlradapted'to supply the workat one end of said work support, a reciprocatory feeder mounted for movement overV saidsupport` ad3acent saidmagazme to move pieces of.

work one by one across said support beneath said tools, a retarder at t e opposite end of said work support operable upon each operation of said feeder to prevent more than the' amount of movement of the Work commumcated by the feeder, said tools being spaced to operate in succession on the work as the pieces are fed intermittently acrosssaid support in the operation of said feeder, a main driven shaft for operating said drills continuously in the operation of said maerated upon, 4and a 4tools operating `therein in spaced and staggered relation for operation on ,different portions of the work, a work support 1n proximity. to said fools, means adapted to introduce work forcibly upon said support after each cutting operation, the pieces of work upon said supportbeing adapted uponV thel introduction of each new piece to 'be advanced step by step from tool to tool in a succession of operatlons of said machine whereby different. portions thereof are opretarding element adapted after each operation of-said feeder to engage the end one of the series of pieces of work on said support to stop thepieces in proper relation to said drills. y

6. In a machine of the character described, in combination with a tooll support, f

tools operating therein, a Work support in proximity to said tools adapted to support work to be operated upon by saidtools, means'adapt'ed to introduce a new piece of work up,on said support after each operation of said tools, 'said tools being arranged in spaced and' staggered` relation whereby each is adapted to operate upon a different portion-of a piece of work, said,y work being.

adapted upon A.the introduction of each new 'piece of work to be ladvanced step by step.

from tool to tool in a succession of operations of said machine.

7. In a machine of the characterl described, the combination of a Stationary drill support, drills operating therein in laterally .spaced and staggered relation, each to op-Y erate upon a. different portion of. a piece of work, a worky support movable toward and away from said drills, said support having guides to receive and hold work to be operated upon, a magazine for work alongside lsaid guides, a` reciprocatory member adapted to feed a piece of work from said magazine to said guides, means for moving said work support with said work thereon toward said drills,V means for positively moving' said' reciprocatory'member to retarded position upon this movement of the work support, andyielding means adapted to operate said reciprocatory member to feed another piece' ofwork when said work snpi I port recedes from said drills, each of said pieces of work being adapted to advance preceding pieces through said guides from drill to drill.

8. .In a machine-.of the ycharacter described, the combination of a stationary tool support, a tool operating' therein, a work' support movable toward and away from said tool, said support having guides to receive and hold work to be operated upon, a magazine for 'work alongside said guides,a` leciprocatory member adapted to feed a piece of work from vsaid magazine to said guides, means for'moving said'work support with said work thereon toward said tool, means for positively moving said reciproca,-

`tory member to retarded position upon this movement of the work support, and yielding means adapted to operate said reciprocatory .member forwardly to feed another piece of work when said work support rec/edes from said tool.

,9. In a machine of the character described, the combination of a power driven element, .a cutter to'ol having driving connection therewith to ybe driven constantly in the operation of the machine, a work support, adjustable work feeding means, and adjustable cutting stroke feeding means, both of said feedingm'eans having driving connections with said power driven element in the, normal operation of said machine but thereof inV setting said machine for operation. i

10. In a machine of `the charactende-f scribed, the combination of a power driven element, a tool, transmission between said element and said tool providing for constant driving thereof in the operation of the machine, a work support, means for feeding work-upon said sup-port. means for producing relative movement one toward the other of said work support and said stool iii-'the cutting operation, transmission between said power driven element and said last two men tioned means providing for detachable driv- .ing connection therewith, and a manually operable element for operating said means upon disconnection thereof from said power driven element. A f i A 11. In a countersinkin machine, the combination of.a stationa y tool support, a

conntersinking drill mounted therein tobe :adapted to be'disconnected therefrom for manual operat1on to permit the adjustingadjusted relative to said support, a vegi'tically movable work support disposed beneath said tool normally in spaced relationpthereto to have work fed thereon, a reciprocating feeder to feed work onto said support in its lower position, and .a member to lift said support to feed saidwork toward said tool, said member being adapted to be yinterchanged whereby to change the lift of`l30 said support andy thereby the depth of countersink produced by said tool.

12. A machine of the character described having, in combination, a base, an operating mechanism havinof aplurality of tools mounted on said base, a support mounted on said base below said tools, a pair of guide lstrips mounted on said support and constil ing mechanism and said support, and means for actuating said feeding member and said last mentioned means in timed relation.

13. In a machine of the character described, the combination of a stationary vertically adjustable tool support, a relatively movable work support adapted to have work fed thereacross to be operated upon, a plurality of tools adapted to be arranged in relation to said tool support to operate oyer any point onl said work support, bearings for said tools universally adjustable in a horizontal plane relative to said tool support, and a plurality of air nozzles stationarily mounted relative to said tools each adjustable universally relative to a tool to operate continuously upon the cutting portion thereof whereby to keep the same relatively cool `and to clear machining's from work operated upon by said tools in the cutting operation.

llt-In a machine of the character de scribed, the combination of a work support, a tool disposed in close proximity therewith, a main driven shaft, a secondary driven shaft, said tool being operated from said main driven shaft. a work feeder operated from said secondar driven shaft reciprocable adjacent sai(v support to feed work thereaeross in relation to said tool, a retarder operated in-.properly timed sequenceto said feeder from said secondary .shaft adjacent said support opposite -said feeder to stop the work in proper relation to saidtool, means operated from said secondary shaft `to'produce relativevmovement between said tool and saidwork support in the cutting o eration, and adjustable speed transmission etween said main and secondary shafts.

15. In a machine of the character described, the combination of a work support, a tool -disposed above said support, a feeder reciproc'able adjacent said support to move work thcreacfoss in relation to said tool, a

[retarder adjacent said fs'upport on the side opposite said feeder adapted tooperate in properly timed sequence with said feeder to thereb stop the work in proper relation with said drill, and means for producing relative said ffeder and to produce relative movement between said work support and said tool in the cutting operation, said cams being adapted t-o be interchanged to vary the stroke of said feeder and the relative movement between said work supportand said tool support, and transmission means between said main and secondary` shafts adapted to change the speed of operation of said cams.

said transmission .including ak clutch adapted.

to be 'released to permit the manual operation of said secndary shaft in setting the machine for operation. l

17. In a machine of the character described, the combination of a tlool support, a work support, a continuously driven main shaft, a tool in said tool support operated from said main shaft continuously in the operation of the machine, a secondary shaft driven from said main shaft, a cam carried adapted to produce relative move-v ment etween said work support and said tool support in the cutting operation, said cam being adapted to be interchanged to produce a variation in the extent of .relative-` movement between said supports, and trans? mission means between said main and secondaryA shafts adapted 'to change the `speed of operation of-'said cam whereby to produce the cutting operations in slower or quicker succession,` as desired, said transmission including a clutch adapted to be released to permit the manual operation of said secondary shaft in setting the machine for operation.

v18. In a machine of the character described, the combination of a tool'support, a work support, a work feeder for moving work across said support, a continuously driven'main shaft, a tool in saidtool support operated from said main shaft continuously in the operation of said machine, afsecondary shaft driven from said mainshaft, cams carried thereby for operating said feeder and to. produce relative movement between said work support and said techsupport in the cutting operation, said cams being adapted to be interclianged to vary the strokev of said feeder and the relative movement between said work support andy said tool support. x l

19. In a machine 4of the character de# ondary shaft driven from said main shaft,

cams carried thereby for operating said feeder and to produce relative movement between said work support'and said tool support in the cutting operation, said cams being adapted to be interchangedv to vary the stroke of said feeder and the amountl of relative movement between said work support and said toolsupport, and transmission means between said main and secondary shafts adapted to change the speed of operation of said cams. j

20. In a machine of the' character described, the combination of a tool support, a work support, a continuously driven main shaft, a tool operated thereby continuously in the operation of the machine, a secondary shaft driven from' said main shaft,a cam carried thereby adapted to produce relative movement between said work support and said tool su port in the cutting operation said cam being adapted to be interchanged to produce a variation in the extent of relative movement between saidy supports, and transmission means between said main and secondary shafts adapted to change vthe speed of operation of said cam whereby to produce the cutting operations in slower orI quicker succession as desired.

21. In a machine of vthe character de scribed, the combination of a drill continuously driven at substantially constant speed 1n the operation of ythe machine', a mainy driven shaft for driving saidv drill, a work support movable toward and away from said drll means for feeding work across said support relative to said drill, means for Zir' ating said work support and said fee g means comprising Va secondary driven shaft,

and transmission means between said main l shaft and said secondary shaft, said transmission including a clutch adapted to be released to permit the manual operation of said means for operating said work support and said feeding means durin the continued power driven operation o said drill.

22. In a machine of the character described, in combination, a drill headhaving a plurality of drills, a work Isupport having a `guideway adapted to receive a'plurality of work blanks, means'l for eflecting a'relative approaching and receding movement between Asaid drill head and said work support,

means for feeding a series of work blanks along said guideway and for periodically introducing a newl blank to said guideway after each operation, a retarding means for engaging the foremost work blank, and a single, power means for actuating said first mentioned means, said feeding means and' said retarding means in timed relation.

23. In a machine of the character described, incombination, a tool mechanism having a plurality of tools, a work support,

,means for effecting a relative movement of said support toward and from said tool mechanism, means for periodically introducing a work' blank to said .work support and for advancing it step by step from one `position to another below successive tools,

retarding'f means for said blanks, and means for actuating said first and second mentioned \means, and said retarding means in timed sequence.

In testimony whereof, AI have hereunto.

aiiixed my` signature. y

WILHELMQALDEEN. 

